/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: vmparam.h 1.16 91/01/18$
*
* @(#)vmparam.h 8.2 (Berkeley) 4/19/94
*/
#ifndef _M68K_VMPARAM_H_
#define _M68K_VMPARAM_H_
/*
* Common constants for m68k ports
*/
/*
* hp300 pmap derived m68k ports can use 4K or 8K pages.
* (except HPMMU machines, that support only 4K page)
* sun3 and sun3x use 8K pages.
* The page size is specified by PGSHIFT in <machine/param.h>.
* Override the PAGE_* definitions to be compile-time constants.
*/
#define PAGE_SHIFT PGSHIFT
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
/* Some implemantations like jemalloc(3) require physical page size details. */
/*
* XXX:
* <uvm/uvm_param.h> assumes PAGE_SIZE is not a constant macro
* but a variable (*uvmexp_pagesize) on MODULE builds in case of
* (MIN_PAGE_SIZE != MAX_PAGE_SIZE). For now we define these macros
* for m68k ports only on !_KERNEL (currently just for jemalloc) builds.
*/
#if !defined(_KERNEL)
#define MIN_PAGE_SHIFT 12
#define MAX_PAGE_SHIFT 13
#define MIN_PAGE_SIZE (1 << MIN_PAGE_SHIFT)
#define MAX_PAGE_SIZE (1 << MAX_PAGE_SHIFT)
#endif /* !_KERNEL */
